Title :
Thermo-magnetic transitions in two-phase nanostructured materials
Author :
Mazaleyrat, F. ; Varga, L.K.
Author_Institution :
LESiR, Ecole Normale Superieure de Cachan, France
fDate :
7/1/2001 12:00:00 AM
Abstract :
The magnetic polymorphism of Finemet type alloys as a function of temperature has been widely observed during the last years. The magnetic transitions however have not been well defined yet. This fact is mainly explained by the lack of systematic experiments describing the structure sensitive characteristics of the magnetization parameters. It is noticeable that the low field and high field properties-i.e., initial permeability and characteristic points of the hysteresis loop-have never been widely correlated. A full set of XRD and magnetic experiment on Finemet type samples of composition Fe73.5Si13.5B 9Nb3Cu1 in both partly and fully crystalline states is presented
Keywords :
X-ray diffraction; boron alloys; copper alloys; ferromagnetic materials; iron alloys; magnetic hysteresis; magnetic permeability; magnetic transitions; magnetisation; nanostructured materials; niobium alloys; silicon alloys; soft magnetic materials; Fe73.5Si13.5B9Nb3Cu 1; Finemet alloy; X-ray diffraction; magnetic hysteresis; magnetic permeability; magnetic polymorphism; magnetization; soft ferromagnet; temperature dependence; thermo-magnetic transition; two-phase nanostructured material; Amorphous magnetic materials; Amorphous materials; Crystallization; Magnetic anisotropy; Magnetosphere; Nanostructured materials; Perpendicular magnetic anisotropy; Saturation magnetization; Soft magnetic materials; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
